Home / 8,631.29-12,946.94-4,760.30

Finding the Fourth Proportional to 8,631.29, 12,946.94 and 4,760.30

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Solution

The fourth proportional to 8,631.29, 12,946.94 and 4,760.30 is: 7,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.29 : 12,946.94 = 4,760.30 : x
  2. Step 2: Convert to fraction form
    8,631.29/12,946.94 = 4,760.30/x
  3. Step 3: Cross multiply
    8,631.29x = 12,946.94 × 4,760.30
  4. Step 4: Simplify right side
    8,631.29x = 61,631,318.48
  5. Step 5: Solve for x
    x = 61,631,318.48/8,631.29
  6. Step 6: Final answer
    x = 7,140.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.